I’ve accidentally removed the frontpage with portfolio dynamic template and I’d like to restore it because it was based on the fullwidth static template that it is impossible to set in other cases (left sidebar, right sidebar, no sidebar the only options). How have I to do?

Thank you for the answer. I want to say that when I create a new template in the first combo box Fullwidth option doesn’t appear but only left sidebar, right sidebar and no sidebar. This compromises the layout of the page.